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Duplication of the vertebral artery: A series of four cases
Michael Kritikos1, Nikhil Sharma1, Neda Sedora-Roman2
11 Department of Neurosurgery, University of Pennsylvania, Philadelphia, USA.
Introduction:
Duplication of the vertebral artery (VA) is a rare vascular variant, with less than 50 reported cases in the literature.
Case Series:
We present four cases of VA duplication and discuss the imaging findings, which highlight the rarely seen VA duplication.
Discussion:
VA duplication is generally considered to be an incidental finding. The VA is formed from the fusion of the longitudinal anastomoses that link the cervical intersegmental arteries, during the 32-40-day stage. The duplication of the VA is a clinically relevant finding for planning of head and neck surgery and neuro-interventional procedures.
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